/ Dictionary / Index M muumuu: Meaning and Definition of Find definitions for: muu•muu Pronunciation: (m'm"), [key] — n. a long, loose-hanging dress, usually brightly colored or patterned, worn esp. by Hawaiian women. a similar dress worn as a housedress. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: muumuu (Thesaurus) mutule Muybridge Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language